Your 1981 VW Passat deserves a K&N! Select the Product Info button below to see everything the air filter fits.

Vehicle

Product

1981 Volkswagen Passat 1.9L L4 CARB - All ModelsAutomotive

I installed this on a 1988 VW Polo. It had a horrible average paper filter that was barely cleaning the air even though it was new. With the K&N, it truly is a different story. It cleans the air better and makes it run happier. Many thanks for this fantastic product.